Intimation u/s 143

Revised Return

An assessee who is required to file a return of income is entitled to revise the return of income originally filed by him to make such amendments, additions or changes as may be found necessary by him. Such a revised return may be filed by the assessee at any time before the assessment is made. There is no limit under the income tax Act in respect of the number of time for which the return of income may be revised by the assessee. However, if a person deliberately files a false return he will be liable to be imprisoned under section 277 and the offence will not be condoned by filing a revised return.

If u are ok with the calculation made by AO, u need not do anything. No rectification is required unless it is asked for by the AO.

Revised Return already explained by Himanshu.